've done. you've sort of taken the experience of it and maybe the science of it and cut around the media and gone directly to the public with it. why was that important to you? what do you want people to get out of that? >> for me, the ultimate reality tv was the first moon landing. if you think about it, a billion people worldwide were invited in to watch something unscripted, live, see how it goes, whatever they say, whatever happens, happens. and it was hugely effective for the same reasons that social media is effective today. if you show people honestly what's happening, if you invite them in, you don't force them to watch, you don't yell at them, just say, come see what's happening. that's what we did on board our time on space station. you can come look if you like. as a result, millions of people got to see what it's really like living in space, not just the science and the experiments, but just people up there living, doing things, brushing our fooefooet teeth, making music. >> you gave a quote to "usa today" about what it was like to do a space walk. you said, in one hand, you'